CN215249442U - Cut fork aerial working platform's pothole protection device - Google Patents
Cut fork aerial working platform's pothole protection device Download PDFInfo
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- CN215249442U CN215249442U CN202120210758.3U CN202120210758U CN215249442U CN 215249442 U CN215249442 U CN 215249442U CN 202120210758 U CN202120210758 U CN 202120210758U CN 215249442 U CN215249442 U CN 215249442U
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Abstract
The utility model discloses a hollow protection device of a scissor-fork type aerial work platform, which is arranged on a fork frame, wherein the fork frame is arranged on a fork frame base; the fork type hydraulic lifting device comprises a pressing plate, a first elastic piece, a second elastic piece, two hollow eccentric pressing blocks and two connecting rods, wherein the pressing plate is arranged at the center position of the fork frame, the first elastic piece and the second elastic piece are symmetrically arranged along the central axis of the pressing plate, and the two hollow eccentric pressing blocks are respectively arranged between one connecting rod and the first elastic piece and between the other connecting rod and the second elastic piece; one end of the connecting rod is connected with the hollow eccentric pressing block, and the other end of the connecting rod is connected with a hollow protection plate which can be opened outwards. The hollow protection system is simple and ingenious in structure, low in failure rate and higher in reliability, manufacturing and maintenance costs are reduced while the using effect of the aerial work platform is effectively guaranteed, the using cost of a user is reduced, and popularization and application of the hollow protection mechanism in the technical field of the aerial work platform are facilitated.
Description
Technical Field
The utility model relates to an aerial working platform technical field specifically is a cut fork aerial working platform's hole hollow protection device.
Background
The aerial work platform is a movable aerial work product for serving aerial work, equipment installation, maintenance and the like in various industries. The related products of the aerial work platform mainly comprise: a scissor type aerial work platform, a trailer type aerial work platform, a crank arm type aerial work platform, a straight arm type aerial work platform, an aluminum alloy aerial work platform, a nested cylinder type aerial work platform and a spider type aerial work platform.
The aerial work platform is suitable for aerial work of various systems such as fire rescue, electric power, street lamps, advertisements, film shooting, communication, gardens, traffic, industrial mines, wharfs and the like, and installation, maintenance and climbing work of industries such as large-scale venues, interior and exterior decoration of factory buildings, ships, civil aviation, steel structures and the like. When the aerial work platform works on a hollow ground, the wheels are easy to get into the aerial work platform, and at the moment, the vehicle body is easy to incline, so that the aerial work platform has the risk of overturning, and the personal safety of operators cannot be guaranteed.
In order to solve the problem of easy inclination, chinese patent publication No. CN206615967U provides a hollow protection mechanism for aerial work platform, comprising a fixed block mounted on a chassis, a hollow support plate disposed on a side of a bottom surface of the chassis, the hollow support plate being hinged to the chassis and hinged to a lower end of a first link, an upper end of the first link being hinged to a left side of a second link via a pin, the pin being inserted and fixed in an arc hole disposed on a side of the chassis, a center of the second link being fixed on the side of the chassis and rotatable, a center of the arc hole being a center of the second link, a pressing shaft passing through the fixed block and disposed on the side of the chassis and being capable of moving up and down, a first spring being fixedly mounted between an upper side of the fixed block and a top cap of the pressing shaft, an upper end of the second spring being connected to the pin, a lower end of the second spring being fixedly connected to the bottom surface of the chassis, for this purpose, a connecting block and the second spring are disposed on the side of the chassis, the bottom cap of the pressing shaft is positioned below the fixed block and presses the right side of the second connecting rod. The probability of the vehicle body tipping is reduced by arranging the hollow protection mechanism of the aerial work platform on the four side legs of the bottom surface of the chassis, and the technical problem is reasonably solved.
However, the hollow protection mechanisms are arranged on the four side legs of the bottom surface of the chassis, so that the structure is complex, the failure rate is high, the manufacturing cost is high, the use cost of a user is increased, and the popularization and the application of the hollow protection mechanisms in the technical field of the aerial work platform are not facilitated.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a cut fork aerial work platform's hollow protection device, this hollow protection system simple structure is ingenious, and the fault rate is low, and the reliability is higher, when effectively guaranteeing aerial work platform result of use, reduces manufacturing, cost of maintenance, reduces user's use cost promptly, is favorable to the popularization and the application of above-mentioned hollow protection mechanism in aerial work platform technical field.
In order to realize the aim, the utility model adopts the following technical scheme that the hollow protection device of the scissor-fork type aerial work platform is arranged on a fork frame, and the fork frame is arranged on a fork frame base; the fork type hydraulic lifting device comprises a pressing plate, a first elastic piece, a second elastic piece, two hollow eccentric pressing blocks and two connecting rods, wherein the pressing plate is arranged at the center position of the fork frame, the first elastic piece and the second elastic piece are symmetrically arranged along the central axis of the pressing plate, and the two hollow eccentric pressing blocks are respectively arranged between one connecting rod and the first elastic piece and between the other connecting rod and the second elastic piece; one end of the connecting rod is connected with the hollow eccentric pressing block, and the other end of the connecting rod is connected with a hollow protection plate which can be opened outwards.
As a preferred scheme of the utility model, hole protective plate install in crotch base bottom.
As a preferred scheme of the utility model, install on the crotch base and prevent that hollow eccentric briquetting from reaching the limiting plate that the dead point caused reverse motion.
As an optimized scheme of the utility model, first elastic component with the second elastic component is compression spring, just first elastic component with the second elastic component dustcoat is equipped with the protective sheath.
As an optimal scheme of the utility model, the clamp plate simultaneously is equipped with deep floor, deep floor follows the central axis symmetry of clamp plate sets up.
As a preferred scheme of the utility model, the clamp plate with the crotch junction is equipped with the wear plate, the wear plate with connect through the retaining member between the clamp plate.
As a preferred embodiment of the present invention, the locking member is a locking bolt.
As an optimal scheme of the utility model, two the limiting plate is followed the central axis symmetry of clamp plate sets up.
As an optimal scheme of the utility model, two the connecting rod is followed the central axis symmetry of clamp plate sets up.
As an optimal scheme of the utility model, two eccentric briquetting of hole is followed the central axis symmetry of clamp plate sets up.
The utility model provides a cut fork aerial working platform's hollow protection device, through setting up the clamp plate, first elastic component, the second elastic component, hollow eccentric briquetting and connecting rod, and install the clamp plate in crotch central point department of putting, and set up first elastic component and second elastic component along the center axis symmetry of clamp plate, can effectively guarantee the stability of above-mentioned hollow mechanism in the use, this hollow protection system simple structure is ingenious simultaneously, the fault rate is low, the reliability is higher, when effectively guaranteeing aerial working platform result of use, reduce manufacturing, cost of maintenance, reduce user's use cost promptly, be favorable to the popularization and the application of above-mentioned hollow protection mechanism in aerial working platform technical field.
Drawings
FIG. 1 is a schematic view illustrating the arrangement of a hollow protection device of a scissor-type aerial work platform on the aerial work platform according to an embodiment;
FIG. 2 is a schematic view of the hollow protection system mounted on the aerial work platform in a folded state according to the embodiment of the scissor-type aerial work platform;
FIG. 3 is a schematic structural diagram of a compression mechanism in the hollow protection device of the scissor-type aerial work platform in the embodiment;
FIG. 4 is a schematic structural diagram of a compression mechanism in the hollow protection device of the scissor-type aerial work platform in the embodiment;
fig. 5 is a schematic mounting diagram of the hollow protection system mounted on the aerial work platform in a lifting state of the scissor-type aerial work platform in the embodiment.
Reference numerals: 10. pressing a plate; 11. a first elastic member; 12. a second elastic member; 13. reinforcing rib plates; 14. a wear plate; 15. a locking member; 16. a protective sleeve; 2. a depression eccentric pressing block; 3. a connecting rod; 4. a hollow protection plate; 5. a limiting plate; 6. a travel switch; 7. a fork; 8. a fork mount.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1 to 5, the hollow protection device of the scissor-type aerial work platform is arranged on a fork frame 7, the fork frame 7 is arranged on a fork frame base 8, the hollow protection device comprises a pressure plate 10, a first elastic piece 11, a second elastic piece 12, two hollow eccentric pressing blocks 2 and two connecting rods 3, the pressing plate 10 is installed at the center of the fork 7, moves up and down with the rise or fall of the fork 7, implements the operation of the hollow protection system, the first elastic piece 11 and the second elastic piece 12 are symmetrically arranged along the central axis of the pressing plate 10, the first elastic piece 11 and the second elastic piece 12 are compression springs with simple structures and convenient installation, the structural stability of the pressing plate 10 in the ascending or descending process can be effectively ensured, and the two hollow eccentric pressing blocks 2 are respectively arranged between one connecting rod 3 and the first elastic piece 11 and between the other connecting rod 3 and the second elastic piece 12; the eccentric briquetting 2 of above-mentioned pothole is connected to 3 one ends of above-mentioned connecting rod, and the other end is connected with pothole protection shield 4 that can outwards open, and to cutting the fork aerial working platform from walking, pothole protection system is a necessary device, can outwards open through setting up pothole protection shield 4, realizes cutting the fork aerial working platform from walking and when every wheel of drive in turn drives into or leaves 600mm x 600mm, dark 100 mm's pothole completely with maximum speed, guarantees that the vehicle steadily can not tumble, and then guarantees operation personnel's security.
The spring elastic force of the first elastic member 11 and the second elastic member 12 must be selected to be larger than the self weight of the hollow eccentric pressing block 2 to press the hollow eccentric pressing block reversely until the hollow protection plate 4 is in a flattened state, and meanwhile, the hollow protection plate also needs to have good impact resistance.
Pothole protection board 4 is installed in the bottom of crotch base 8, guarantees pothole protection board 4's result of use, relies on the dead weight completely to open pothole protection board 4, and mechanical structure is simple, and is nimble reliable, and the fault rate is low.
First elastic component 11 and second elastic component 12 all cover outward and are equipped with protective sheath 16, and protective sheath 16's setting is mainly in order to avoid some crushed aggregates, impurity to block the spring under more complicated operating mode to extrude this mechanism and cause the inefficacy of this mechanism when leading to cutting the fork to fall, guarantee above-mentioned hollow protection system's result of use.
The size of the connecting rod 3 is arranged according to the distance between the hollow eccentric pressing block 2 and the hollow protective plate 4 and is used for connecting the hollow eccentric pressing block 2 and the hollow protective plate 4, so that the hollow protective plate 4 is effectively prevented from being withdrawn under the action of external force when the hollow protective plate 4 is vertically opened and normally works and does not pass through a dead point.
And a limiting plate 5 for preventing the hollow eccentric pressing block 2 from reaching a dead point and causing reverse movement is arranged near the hollow eccentric pressing block 2, in order to further ensure the structural stability of the limiting plate 5, the limiting plate 5 is fixedly arranged on the fork frame base 8, and the limiting plate 5 can prevent the hollow eccentric pressing block 2 from reaching the dead point and causing directional movement, so that the hollow plate is prevented from being in an unfoldable state.
A travel switch 6 is further arranged in the hollow protection device, the forming switch 6 is arranged on a fork frame base 8, the travel switch 6 is arranged in contact with a limiting plate 5, namely, a transmission command of the travel switch 6 is designed in relation with the working state of the hollow protection system, and when the pressing plate 10 is pressed down until the limiting plate 5 is in contact with the travel switch 6, the pressing plate 10 stops pressing down.
Further, in order to guarantee the stability of the hollow protection system structure and further guarantee the using effect of the scissor-fork type aerial work platform, the two limiting plates 5 are symmetrically arranged along the central axis of the pressing plate 10, the two connecting rods 3 are symmetrically arranged along the central axis of the pressing plate 10, and the two hollow eccentric pressing blocks 2 are symmetrically arranged along the central axis of the pressing plate 10.
In order to further ensure the structural strength of the compression structure 1, a reinforcing rib plate 13 is arranged on one surface of the pressing plate 10, and the reinforcing rib plate 13 is symmetrically arranged along the central axis of the pressing plate 10.
In order to guarantee the life of clamp plate 10, and then guarantee above-mentioned hollow protection system's life, reduce use cost, above-mentioned clamp plate 10 is equipped with wear plate 14 with above-mentioned crotch 7 junction, be connected through retaining member 15 between above-mentioned wear plate 14 and the above-mentioned clamp plate 10, above-mentioned retaining member 15 is simple structure, simple to operate's locking bolt, repair the accessory in hollow protection system as needs, during the change, can directly dismantle locking bolt, and is simple and convenient, easy operation, can effective maintenance personnel's operating efficiency, the reinforcing is used and is experienced, be favorable to above-mentioned hollow protection system in aerial working platform technical field's popularization and application.
The operating principle of the hollow protection system in the embodiment is as follows: the hollow protection system has two states, namely a working state; the second is the non-working state, namely the furling state.
Firstly, the principle of the working state: the pressing plate 10 is fixed on the fork frame 7, and is lifted away from contact with the hollow eccentric pressing block 2 along with the fork frame 7, and at the moment, the hollow eccentric pressing block 2 moves downwards around a rotating shaft point to the limiting plate 5 to be stopped under the action of self weight; the hollow protection plate 4 is pushed to be opened through the connecting rod 3, the area of the bottom of the fork frame 7 is enlarged, and the hollow protection plate 4 cannot be folded under the action of external force at the moment and is in a safe working state.
At the moment, when the hollow eccentric pressing block 2 moves downwards, the head of the hollow eccentric pressing block moves upwards and touches the travel switch 6, so that the travel switch 6 is electrified, and meanwhile, commands are transmitted to the controller, so that the vehicle is forcibly controlled to only have a slow-speed running function, and the high-speed running function of the vehicle is disabled. At the moment, when the fork frame 7 is lifted and the platform is lifted to a certain height until the maximum working height, the vehicle only has a slow safe driving speed, the use safety of the aerial work platform is ensured, and the life safety of the operating personnel is further ensured.
II, a non-working state, namely a furling state principle: since the pressing plate 10 is fixed on the fork 7, when the fork 7 descends to a completely folded state, the first elastic member 11 and the second elastic member 12 contact the hollow eccentric pressing block 2 and slowly press the hollow eccentric pressing block 2 downwards, and at this time, the hollow protection plate 4 is flattened to the position of the limit plate 5 under the pulling of the connecting rod 3 and stops moving.
At this time, the hollow eccentric pressing block 2 is pressed by the first elastic piece 11 and the second elastic piece 12 and then is separated from the contact with the travel switch 6, at this time, the travel switch 6 is powered off, and simultaneously, commands are transmitted to the controller, so that the vehicle is controlled to have two driving states of high speed and low speed.
When the hollow protection plate 4 is not in the two states, namely the vehicle is in a fault, the alarm reminds that all work functions except descending are forbidden by the vehicle, parking inspection is carried out, and related work is carried out after the fault is eliminated.
In the embodiment, the hollow protection device of the scissor-type aerial work platform is characterized in that the pressing plate 10, the hollow eccentric pressing block 2, the connecting rod 3 and the travel switch 6 are arranged, the pressing plate 10 is fixedly connected to the fork frame 7 and is installed at the central position of the fork frame 7, the first elastic piece 11 and the second elastic piece 12 are symmetrically arranged along the central axis of the pressing plate 10, the stability of the hollow mechanism in the using process can be effectively guaranteed, meanwhile, the hollow protection system is simple and ingenious in structure, low in failure rate and higher in reliability, the manufacturing cost and the maintenance cost are reduced while the using effect of the aerial work platform is effectively guaranteed, the using cost of a user is reduced, and the popularization and the application of the hollow protection mechanism in the technical field of the aerial work platform are facilitated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: 1. a compression mechanism; 10. pressing a plate; 11. a first elastic member; 12. a second elastic member; 13. reinforcing rib plates; 14. a wear plate; 15. a locking member; 2. a depression eccentric pressing block; 3. a connecting rod; 4. a hollow protection plate; 5. a limiting plate; 6. a travel switch; 7. a fork; 8. fork mount, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. A hollow protection device of a scissor-fork type aerial work platform is arranged on a fork frame (7), wherein the fork frame (7) is arranged on a fork frame base (8); the method is characterized in that: the fork type hydraulic lifting mechanism comprises a pressing plate (10), a first elastic piece (11), a second elastic piece (12), two hollow eccentric pressing blocks (2) and two connecting rods (3), wherein the pressing plate (10) is installed at the central position of a fork (7), the first elastic piece (11) and the second elastic piece (12) are symmetrically arranged along the central axis of the pressing plate (10), and the two hollow eccentric pressing blocks (2) are respectively installed between one connecting rod (3) and the first elastic piece (11) and between the other connecting rod (3) and the second elastic piece (12); one end of the connecting rod (3) is connected with the hollow eccentric pressing block (2), and the other end of the connecting rod is connected with a hollow protective plate (4) which can be opened outwards.
2. The pothole protection device of the scissor-type aerial work platform of claim 1, wherein: the hollow protection plate (4) is arranged at the bottom of the fork frame base (8).
3. The pothole protection device of the scissor-type aerial work platform according to claim 2, wherein: and a limiting plate (5) for preventing the hollow eccentric pressing block (2) from reaching a dead point to cause reverse motion is arranged on the fork frame base (8).
4. A pothole protection device of a scissor-type aerial work platform according to claim 3, wherein: the first elastic piece (11) and the second elastic piece (12) are both compression springs, and protective sleeves (16) are arranged outside the first elastic piece (11) and the second elastic piece (12).
5. A pothole protection device of a scissor-type aerial work platform according to claim 4, wherein: one surface of the pressing plate (10) is provided with a reinforcing rib plate (13), and the reinforcing rib plate (13) is symmetrically arranged along the central axis of the pressing plate (10).
6. A pothole protection device of a scissor-type aerial work platform according to claim 5, wherein: the anti-abrasion device is characterized in that an anti-abrasion plate (14) is arranged at the joint of the pressure plate (10) and the fork frame (7), and the anti-abrasion plate (14) is connected with the pressure plate (10) through a locking piece (15).
7. A pothole protection device of a scissor-type aerial work platform according to claim 6, wherein: the locking piece (15) is a locking bolt.
8. A pothole protection device of a scissor-type aerial work platform according to claim 3, wherein: the two limiting plates (5) are symmetrically arranged along the central axis of the pressing plate (10).
9. The pothole protection device of the scissor-type aerial work platform of claim 8, wherein: the two connecting rods (3) are symmetrically arranged along the central axis of the pressure plate (10).
10. The pothole protection device of the scissor-type aerial work platform of claim 9, wherein: the two hollow eccentric pressing blocks (2) are symmetrically arranged along the central axis of the pressing plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120210758.3U CN215249442U (en) | 2021-01-26 | 2021-01-26 | Cut fork aerial working platform's pothole protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120210758.3U CN215249442U (en) | 2021-01-26 | 2021-01-26 | Cut fork aerial working platform's pothole protection device |
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| Publication Number | Publication Date |
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| CN215249442U true CN215249442U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120210758.3U Active CN215249442U (en) | 2021-01-26 | 2021-01-26 | Cut fork aerial working platform's pothole protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744762A (en) * | 2021-01-26 | 2021-05-04 | 浙江加力仓储设备股份有限公司 | Cut fork aerial working platform's pothole protection device |
-
2021
- 2021-01-26 CN CN202120210758.3U patent/CN215249442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744762A (en) * | 2021-01-26 | 2021-05-04 | 浙江加力仓储设备股份有限公司 | Cut fork aerial working platform's pothole protection device |
| CN112744762B (en) * | 2021-01-26 | 2024-05-07 | 浙江加力仓储设备股份有限公司 | Hollow protection device of scissor type aerial work platform |
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